<template>
	<view>
		<view class="charts-box">
			<qiun-data-charts type="line" :opts="opts" :chartData="chartData" />
		</view>
		<view>
			<button type="default" @tap="turnscreen">旋转屏幕</button>
		</view>
		<uni-section title="请选择日期" type="line"></uni-section>
		<view class="example-body">
			<uni-datetime-picker type="date" 
			                    v-model="single"
								start="2022-12-18" 
								end="2025-12-31" @change="change" 
								/>
		</view>
		
		<uni-section title="请选择网络" type="line">
		      <uni-data-select v-model="value" :localdata="range"  
			  @change="netchange" ></uni-data-select>
		</uni-section>
	</view>
</template>

<script>
	import uCharts from 'uni_modules/qiun-data-charts/js_sdk/u-charts/u-charts.js';
	var uChartsInstance = {};
	var x = 0;
	var y = 0;
	export default {
		data() {
			return {
				single: "2022-12-27",
				durl:'http://192.168.3.61:8877/readdata/index?today=',
				value:0,
				range: [{ value: 0, text: "本地网络" },
				         { value: 1, text: "互联网" },
						 ],
	
				arrtemp: [],
				arrtime: [],
				chartData: {},

				//您可以通过修改 config-ucharts.js 文件中下标为 ['line'] 的节点来配置全局默认参数，如都是默认参数，此处可以不传 opts 。实际应用过程中 opts 只需传入与全局默认参数中不一致的【某一个属性】即可实现同类型的图表显示不同的样式，达到页面简洁的需求。
				opts: {
					color: ["#FAC858", "#1890FF", "#91CB74"],
					padding: [15, 10, 0, 15],
					legend: {},
					dataLabel: false,
					xAxis: {
						disableGrid: true,
						labelCount: 20,
					},
					yAxis: {
						gridType: "dash",
						dashLength: 2
					},
					extra: {
						line: {
							type: "curve",
							width: 2,
							activeType: "hollow"
						}
					}
				}
			};
		},
		onReady() {
			this.getServerData();
		},

		methods: {
			netchange(e){
				this.value=e;
				if(this.value==0){
					this.durl='http://192.168.3.61:8877/readdata/index?today=';
				}
				else{
					this.durl='http://nasv6.zjtxxjd.top:8877/readdata/index?today=';
				}
				
				this.getServerData();
			},
			change(e) {
				this.single=e;
				this.getServerData();

			},
			turnscreen() {
				x = plus.screen.getCurrentSize().width;
				y = plus.screen.getCurrentSize().height;
				if (x < y) {
					plus.screen.lockOrientation("landscape-primary");
				} else {
					plus.screen.lockOrientation("portrait-primary");
				}
			},
			getServerData() {
				uni.request({
					url: this.durl+this.single,
					method: 'GET',
					success: res => {
						this.arrtemp = res.data.temp;
						this.arrtime = res.data.time;
					},
				});
				//模拟从服务器获取数据时的延时
				setTimeout(() => {
					//模拟服务器返回数据，如果数据格式和标准格式不同，需自行按下面的格式拼接
					let res = {
						categories: this.arrtime,
						series: [{
							name: "温度",
							//lineType: "dash",
							data: this.arrtemp
						}]
					};
					this.chartData = JSON.parse(JSON.stringify(res));
				}, 500);
			},
		}
	};
</script>

<style scoped>
	/* 请根据实际需求修改父元素尺寸，组件自动识别宽高 */
	.charts-box {
		width: 780px;
		height: 300px;
	}
</style>
